Wattage: approx. 0.5WPowered By: USB(Adapters are not included)Size: 30 * 80 * 40mmColor of Light : Bright WhiteColor of Shell : As show in pictureBuild-in switch control by push up and down the maskBright white LEDs housed in each head with separate on/off switchesCan be used free standing for laptops, orchestra pits, schools, dark clubs, etc.